This lakeside town in Sullivan County shows an average radon level of 6.5 pCi/L based on testing in zip code 03782, exceeding the EPA action threshold of 4.0 pCi/L. Sunapee's granite bedrock and seasonal home population create unique radon challenges typical of New Hampshire's lake regions. The community's mix of year-round residences and vacation properties, many with basements, requires careful attention to radon mitigation strategies.
6.50
pCi/L average
Above EPA Action Level
Based on 2 user-submitted radon tests for homes in Sunapee, NH. The EPA recommends taking action at or above 4.0 pCi/L.
0
4.0 EPA
10+
Sunapee, NH Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
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User-submitted radon test readings from homes in the Sunapee area.
Radon Level
City
Home Age
Foundation
5 pCi/L
Sunapee, NH
0-20 Years
Full Basement
8 pCi/L
Sunapee, NH
0-20 Years
No Basement/All Slab
Have a radon test result for Sunapee? Submit your reading to help other homeowners.
Radon FAQ for Sunapee, NH
What is the average radon level in Sunapee, NH?
Based on 2 user-submitted tests, the average radon level in Sunapee is 6.50 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.
What EPA Radon Zone is Sunapee in?
Sunapee and the 03782 zip code are in Sullivan County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.
How much does radon mitigation cost in Sunapee?
Radon mitigation in Sunapee typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.
Should I test for radon if I'm buying a home in Sunapee?
Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.
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Cities in New Hampshire with the most user-submitted radon test data, ranked by number of submissions.
